perf: defer mobile workspace bootstrap (Closes #996)

frontend/index.html

@@ -1650,6 +1650,7 @@
 <script src="static/mobile-search-preview-nav.js"></script>
 <script src="static/mobile-plan-today-nav.js"></script>
 <script src="static/mobile-find-work-nav.js"></script>
+<script src="static/workspace-bootstrap.js"></script>
 <script src="static/dashboard.js"></script>
 </body>
 </html>